{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "42338",
    "entityType": "User",
    "nonce": "0xb04a63c3ec3407f29414a595db5113db3774a25a6ee50c9e9964f495391bd186",
    "signature": "0x352200a3fa10061a57e730fb7ca8e68c63d9189d719c3234ad89f1219d216f8f3ceed165043f72c378c42c3604fb3d140ea9445c04922430803e9bccbd418f921b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}